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// PpmdDecoder.h
// 2009-05-30 : Igor Pavlov : Public domain
#ifndef __COMPRESS_PPMD_DECODER_H
#define __COMPRESS_PPMD_DECODER_H
#include "../../Common/MyCom.h"
#include "../ICoder.h"
#include "../Common/OutBuffer.h"
#include "PpmdDecode.h"
#include "RangeCoder.h"
namespace NCompress {
namespace NPpmd {
class CDecoder :
public ICompressCoder,
public ICompressSetDecoderProperties2,
#ifndef NO_READ_FROM_CODER
public ICompressSetInStream,
public ICompressSetOutStreamSize,
public ISequentialInStream,
#endif
public CMyUnknownImp
{
CRangeDecoder _rangeDecoder;
COutBuffer _outStream;
CDecodeInfo _info;
Byte _order;
UInt32 _usedMemorySize;
int _remainLen;
UInt64 _outSize;
bool _outSizeDefined;
UInt64 _processedSize;
HRESULT CodeSpec(UInt32 num, Byte *memStream);
public:
#ifndef NO_READ_FROM_CODER
MY_UNKNOWN_IMP4(
ICompressSetDecoderProperties2,
ICompressSetInStream,
ICompressSetOutStreamSize,
ISequentialInStream)
#else
MY_UNKNOWN_IMP1(
ICompressSetDecoderProperties2)
#endif
void ReleaseStreams()
{
ReleaseInStream();
_outStream.ReleaseStream();
}
HRESULT Flush() { return _outStream.Flush(); }
STDMETHOD(CodeReal)(ISequentialInStream *inStream, ISequentialOutStream *outStream,
const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo *progress);
STDMETHOD(Code)(ISequentialInStream *inStream, ISequentialOutStream *outStream,
const UInt64 *inSize, const UInt64 *outSize, ICompressProgressInfo *progress);
STDMETHOD(SetDecoderProperties2)(const Byte *data, UInt32 size);
STDMETHOD(SetInStream)(ISequentialInStream *inStream);
STDMETHOD(ReleaseInStream)();
STDMETHOD(SetOutStreamSize)(const UInt64 *outSize);
#ifndef NO_READ_FROM_CODER
STDMETHOD(Read)(void *data, UInt32 size, UInt32 *processedSize);
#endif
CDecoder(): _outSizeDefined(false) {}
};
}}
#endif
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